Photo indexwidget for aggregator blogs

This widget is not usable on a an aggregated blog.
I can only put 1 blognumber in the 'blog to use'. For an aggragated blog, I would need to put an array of blogs.
But what sould be better, is that I use the aggragated blognumber and that behind the scenes, the blog generates all the blogs it has to search for pictures
ie my picture blog is an aggagated blog of 15 other picture blogs, so to me that would make a lot of sense